Nelson Pass wrote a nice paper on this - its available on his website.
http://passlabs.com/articles.htm
Peter
http://passlabs.com/articles.htm
Peter
Actually difference between class A and AB?
Nelson Pass wrote a nice paper on this - its available on his website. http://passlabs.com/articles.htm Peter |
The difference if fairly simple. Class A amps run at full power all the time. Class B amps run 'on demand'. Class AB amps usually run in class A at lowest power, then switch to class B at higher power. Whether one is better than the other is hard to say, largely it depends on the individual design. Personally I use 30wpc Class A tubes and it, to me, is far superior to anything I've owned in an AB design. But that's just my opinion. |
As always it depends on which two amps you are talking about, not just what class they run in. I have had several Class A amps and countless AB amps; overall I think the Class A amps sound better, but I am not using one right now. Have one in mind I may try but I like my CJ 350. Not quite as sweet in the top end but close, with more bass than most A's outside of Krell and runs a lot cooler. Just one aspect of amplifier performance to consider. Bottom line, get what you think sounds right. |